1. The Iberian Peninsula: Located in southwestern Europe, the Iberian Peninsula is home to the countries of Spain and Portugal. It is surrounded by the Atlantic Ocean to the west and south, the Mediterranean Sea to the east, and the Pyrenees mountain range to the north.
2. The Italian Peninsula: Shaped like a boot, the Italian Peninsula extends into the Mediterranean Sea from southern Europe. It is home to the country of Italy, as well as the microstates of San Marino and Vatican City. The peninsula is bordered by the Alps to the north and the Apennine Mountains to the west.
3. The Balkan Peninsula: Located in southeastern Europe, the Balkan Peninsula is home to a number of countries, including Greece, Albania, Bulgaria, Croatia, Bosnia and Herzegovina, Montenegro, North Macedonia, Kosovo, and Serbia. The peninsula is bordered by the Adriatic Sea to the west, the Ionian Sea to the south, the Aegean Sea to the east, and the Black Sea to the northeast.